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Chris LuandGitHub
0ad83d5061
Put/DeleteObjectTagging set the update directory to the bucket root for a null version, so a tag change on allowed/protected.txt landed on protected.txt at the bucket root instead. A principal scoped to one nested key could overwrite a different object sharing the basename, the same class of scope bypass fixed for PutObjectAcl. Share the object's parent-directory resolver across both paths.
50 lines
2.3 KiB
Go
50 lines
2.3 KiB
Go
package s3api
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import (
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"testing"
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"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
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"github.com/seaweedfs/seaweedfs/weed/s3api/s3_constants"
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)
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// TestObjectMetadataUpdateDirectory guards against a metadata-update scope bypass shared by
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// PutObjectAcl and Put/DeleteObjectTagging: a nested object key must resolve to its own
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// parent directory, not the bucket root, otherwise updating the ACL or tags of
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// allowed/protected.txt would rewrite a different protected.txt at the bucket root.
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func TestObjectMetadataUpdateDirectory(t *testing.T) {
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s3a := &S3ApiServer{option: &S3ApiServerOption{BucketsPath: "/buckets"}}
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const bucket = "target-bucket"
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bucketDir := "/buckets/target-bucket"
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versioned := func(id string) *filer_pb.Entry {
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return &filer_pb.Entry{Extended: map[string][]byte{s3_constants.ExtVersionIdKey: []byte(id)}}
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}
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tests := []struct {
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name string
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object string
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versioningConfigured bool
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versionId string
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entry *filer_pb.Entry
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want string
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}{
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{"non-versioned nested key", "allowed/protected.txt", false, "", &filer_pb.Entry{}, bucketDir + "/allowed"},
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{"non-versioned root key", "protected.txt", false, "", &filer_pb.Entry{}, bucketDir},
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{"non-versioned deep key", "a/b/c/protected.txt", false, "", &filer_pb.Entry{}, bucketDir + "/a/b/c"},
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{"null version nested key", "allowed/protected.txt", true, "", versioned("null"), bucketDir + "/allowed"},
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{"explicit null version nested key", "allowed/protected.txt", true, "null", versioned("null"), bucketDir + "/allowed"},
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{"empty version nested key", "allowed/protected.txt", true, "", &filer_pb.Entry{}, bucketDir + "/allowed"},
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{"specific version nested key", "allowed/protected.txt", true, "v1", versioned("v1"), bucketDir + "/allowed/protected.txt" + s3_constants.VersionsFolder},
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{"latest versioned nested key", "allowed/protected.txt", true, "", versioned("v1"), bucketDir + "/allowed/protected.txt" + s3_constants.VersionsFolder},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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got := s3a.objectMetadataUpdateDirectory(bucket, tt.object, tt.versioningConfigured, tt.versionId, tt.entry)
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if got != tt.want {
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t.Errorf("objectMetadataUpdateDirectory(%q) = %q, want %q", tt.object, got, tt.want)
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}
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})
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}
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}
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